Abstract:

Abstract：【OBJECTIVE】 In this study, the growth and qualities of spinach was studied under field conditions. The paper also investigated the correlation between the growth and qualities of spinach and ecological stoichiometry characteristics of spinach.【METHOD】There were five treatments as follows: CK, organic fertilizers plus inorganic fertilizers 1, organic fertilizers plus inorganic fertilizers 2, organic fertilizers and inorganic fertilizers.【RESULTS】 These results showed that the yield, Pn (photosynthetic rate), soluble sugar, sucrose, free amino acids, nitrogen use efficiency and nitrogen uptake efficiency in spinach showed an increase in the organic fertilizers plus inorganic fertilizers 1 treatment. Also, these indicators were significantly correlated with the ratios of C/N、C/P in the shoot of spinach. However, under this treatment, the nitrate content in spinach were decreased and were not correlated with the ratio of N/P、C/N、C/P、P/K in shoot or these treatments.【CONCLUSION】These results indicated that the yield and quality of spinach could be improved under organic fertilizers plus inorganic fertilizers 1.